Cerion pygmaeum Pilsbry and Vanatta, 1896

Original Description

"Shell small and rather thin, varying from cylindric to short oval. Whorls 7 to 8½, the latter 2 to 3 of subequal diameter, those above forming a stumpy (often very short) cone. Rusty brown. Surface regularly costellate; apical whorl smooth, next whorl finely and regularly striated. Last whorl ascending as usual in front, having a very short umbilical rimation below.

The short, typical form of this variety is extremely peculiar in shape, being shorter than any other Cerion. Longer examples are more like C. tenuilabre, of which we consider it a small variety. Many specimens are before us." (Pilsbry & Vanatta, 1896:334-335).